JPS5857585A - Pipe joint and its assembling method - Google Patents
Pipe joint and its assembling methodInfo
- Publication number
- JPS5857585A JPS5857585A JP15795081A JP15795081A JPS5857585A JP S5857585 A JPS5857585 A JP S5857585A JP 15795081 A JP15795081 A JP 15795081A JP 15795081 A JP15795081 A JP 15795081A JP S5857585 A JPS5857585 A JP S5857585A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- pipe joint
- pipe
- fitting
- pushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
近年、管継手本体にステンレス管等の連結管体の端部を
嵌入しておき、この画体の嵌合部分にこれを絞り変形さ
せた状態でリングを押込ませることによって、画体を溶
接等を要することなく簡便に連結させて管継手を組立て
ることが行われているが、本発明はこのような管継手及
びその組立方法の改良に関するものである。[Detailed Description of the Invention] In recent years, it has become common practice to fit the end of a connecting pipe body such as a stainless steel pipe into a pipe joint body, and push a ring into the fitting part of the body in a state where it is squeezed and deformed. Accordingly, a pipe joint is assembled by simply connecting the picture bodies without welding or the like, and the present invention relates to an improvement of such a pipe joint and its assembly method.
従来のこの種管継手にあっては、管継手本体に連結管体
の端部を嵌入させた状態で、連結管体の外周に嵌挿させ
た管継手本体方向へ拡がる截頭円錐状の内周面を有する
リングを、画体の嵌合部分へこれを絞り変形させながら
押込ませているのが普通である。In conventional pipe fittings of this kind, when the end of the connecting pipe body is fitted into the pipe fitting body, a truncated conical inner part that expands toward the pipe fitting body fitted onto the outer periphery of the connecting pipe body is formed. Usually, a ring having a circumferential surface is pushed into the fitting portion of the picture object while being squeezed and deformed.
ところが、このようにリング自体で画体の嵌合部分を絞
り変形させるようにしたときには、リングの内周面形状
をどうしても前記嵌合部分から抜？ｆ勝手となる截頭円
錐形状とせざるを得ないため、画体の連結部分に圧力や
振動が作用することによって、リングが画体の嵌合部分
がら抜ける方向へ自然りこ移動せしめられ易く、画体の
確実強固な連結が維持され難い。したかつて、耐圧力及
び耐振動性に問題があり、連結部分からの漏洩を招来し
易く、管体の引き抜は阻止力も弱いといった欠点があっ
た。However, when the ring itself squeezes and deforms the fitting part of the picture body in this way, the shape of the inner peripheral surface of the ring cannot be removed from the fitting part. Since the ring is forced to have a truncated conical shape that is free-handed, when pressure or vibration is applied to the connecting part of the picture body, the ring tends to move naturally in the direction of coming out of the mating part of the picture body, and the picture Difficulty maintaining solid body connections. In the past, there were problems with pressure resistance and vibration resistance, the possibility of leakage from the connecting parts, and the weak ability to prevent the tube from being pulled out.
本発明は、従来における上記の欠点を排除すべくなされ
たもので、管継手本体と連結管体上の連結が確実強固に
行われる管継手及びその組立方法を提供するものである
。The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional art, and provides a pipe joint in which the connection between the pipe joint body and the connecting pipe body is reliably and firmly established, and a method for assembling the same.
この課匙を解決した本発明の管継手は、管継手本体と該
本体の内周部にその端部を嵌入させた連結管、一体とを
、前記管継手本体の外周部に嵌合させた内径一定のリン
グでもって前記画体の嵌合部分を絞り変形させた状態で
連結したこ上本体に連結管体の端部を嵌入させると共に
、該連結管体の外周部に嵌挿させた内径一定のリングを
、その内周形状を管継手本体方向へ拡がる略截頭円錐状
とせる絞り部を有する押込体に、該絞り部に連らならせ
て保持させた状態で、前記押込体を管継手本体方向へ移
動させて、前記画体の嵌合部分を前記絞り部で絞り変形
せしめながら、この絞り変形された部分に引続いて前記
リングを押込ませ、その後前記押込体を該リングから脱
離させることを要旨とするものである。The pipe joint of the present invention that solves this problem includes a pipe joint main body and a connecting pipe whose end is fitted into the inner circumference of the main body, which is fitted into the outer circumference of the pipe joint main body. The end of the connecting pipe body is fitted into the upper main body which is connected with the fitting part of the picture body being squeezed and deformed by a ring with a constant inner diameter, and the inner diameter of the connecting pipe body is fitted into the outer peripheral part of the connecting pipe body. A certain ring is held in a pushing body having a constricted part whose inner circumferential shape is approximately truncated conical expanding toward the pipe fitting body, and the said pushing body is held in a state in which it is connected to the constricted part. While moving toward the pipe joint main body, the fitting portion of the drawing body is squeezed and deformed by the squeezed portion, and the ring is subsequently pushed into the squeezed and deformed portion, and then the pushing body is removed from the ring. The gist of this is to eliminate it.
以下、その実施例を第１図〜第７図について説明する。Examples thereof will be described below with reference to FIGS. 1 to 7.
この実施例の管継手は、第７図に示す如く、記画体１，
２の嵌合部分１ａ、２ａを絞り変形させた状態で連結さ
せてなるものであり、この実施例では次のようにして組
立てられる。As shown in FIG. 7, the pipe joint of this embodiment has a recording body 1,
The two fitting parts 1a and 2a are connected in a squeezed and deformed state, and in this embodiment, they are assembled as follows.
すなわち、まず連結管体２の外周部に内外径を各々一定
に成形されたリング６を嵌挿させると共に、連結管体２
の端部２ａを管継手本体１の継手部１ａ内にその段部１
ｂに衝合する状態で嵌入させる。このとき、画体１，２
の嵌合せる端部ｉａ、２’ａ間には、シール部材４を介
装させておく。このシール部材４としては種々のものが
用いられるが、具体的にはシールテープ或いはシールチ
ューブ等が用いられる。例えは、シールテープを用いる
場合は、片面接着テープ或いは両面接着テープを連結管
体２の端部２ａの外周部に巻装した上、この端部２ａを
管継手本体１の継手部１ａ内に嵌入させる。またシール
チューブを用いる場合は、シールチューブを適宜の接着
剤により管継手本体１の継手部１ａの内周面に嵌合接着
させた上、この接着されたシールチューブ内に連結管体
２の端部２ａを嵌入させる。このときシールチューブと
連結管体２の端部２ａとの間を適宜の接着剤で接着させ
ておいてもよい。そして前記シールチューブ等シール部
材の材質は、その用途に応じてテフロン、ブチルゴム又
は不織布等適宜とされる。That is, first, a ring 6 having a constant inner and outer diameter is fitted onto the outer circumference of the connecting tube body 2, and the connecting tube body 2 is
Insert the end 2a of the pipe into the joint part 1a of the pipe joint body 1,
Insert it so that it aligns with b. At this time, image bodies 1 and 2
A sealing member 4 is interposed between the fitting ends ia and 2'a. Various materials can be used as this sealing member 4, and specifically, a sealing tape, a sealing tube, etc. are used. For example, when using seal tape, wrap one-sided adhesive tape or double-sided adhesive tape around the outer circumference of the end 2a of the connecting pipe body 2, and then insert this end 2a into the joint part 1a of the pipe fitting main body 1. Insert. In addition, when using a seal tube, the seal tube is fitted and adhered to the inner circumferential surface of the joint part 1a of the pipe joint body 1 using an appropriate adhesive, and then the end of the connecting pipe body 2 is inserted into the adhered seal tube. Insert the part 2a. At this time, the seal tube and the end portion 2a of the connecting pipe body 2 may be bonded together using a suitable adhesive. The material of the seal member such as the seal tube may be selected from Teflon, butyl rubber, non-woven fabric, etc. depending on its use.
なお、前記リング乙の内径は、連結管体２の外径よりも
若干大きく設定されている。Note that the inner diameter of the ring B is set to be slightly larger than the outer diameter of the connecting pipe body 2.
そして、前記リング６を押込体５に保持させておき、こ
の状態（第４図状態）で押込体５を管継手本体１方向つ
まり前方（矢印方向）に移動させて、リング３を画体１
，２の嵌合部分１ａ、２ａに押込ませるのであるが、こ
＼で第１図〜第３藺を参照して、押込体５を備え目つこ
れを前方へ抑圧移動させるべく構成された押込工具につ
いて説明する。Then, the ring 6 is held by the pushing body 5, and in this state (state in FIG. 4), the pushing body 5 is moved in one direction of the pipe joint body, that is, forward (in the direction of the arrow), and the ring 3 is moved into the picture body 1.
, 2 into the fitting portions 1a and 2a of 2. Referring to FIGS. Explain the tools.
すなわち、押込体５は第２図に示す如く、前方へ拡がる
半割截頭円錐状の第１絞り面部６ａ及び該絞り面部６ａ
から後方へ連らなる半割環状の第１係合凹溝７ａを形成
せる倒立門形状の本体部分８と、その下面部に前記第１
絞り面部６ａ及び第１係合凹溝７ａに各々対応し１つ同
一形状の第２絞り面部６ｂ及び第２係合凹溝７ｂを形成
せる分離部分９とを、分離部分９の各案内凹溝９ａを本
体部分８の各突条８ａに−に方から係合させた上コツタ
１０を洞貫固定させるととによって、前記両絞り面部６
ａ 、６ｂ及び両係合凹溝７ａ、７ｂてもって前方へ拡
がる截頭円錐状の内周面を有する絞り部６及びリング３
を前後移動不能に目つ径方向へ拡張不能に保持しつる環
状の保持凹部７が形成された状態で、一体化できるよう
構成されている。そして、前記絞り部乙の最大径つまり
前端縁部の内径は１１０記管継手本体１の継手部１ａの
外径よりもオ゛１°ト人きく設定されていると共に、そ
の最小径っまり後端縁部の内径はリング６の内径よりも
ン′１： 、Ｆ大きく設定されており、さらに前記リン
グろの前端面と内周面との交叉角部３ａは、前記絞り部
６の内周面にその後端縁部から円滑に連らなるよう面取
りさねている（第３図参照）。That is, as shown in FIG. 2, the pushing body 5 has a first aperture surface portion 6a in the shape of a half truncated cone that expands forward, and the aperture surface portion 6a.
an inverted gate-shaped main body portion 8 forming a half-annular first engagement groove 7a extending rearward from the main body portion 8;
A separating portion 9 forming a second aperture surface portion 6b and a second engaging groove 7b having the same shape and corresponding to the aperture surface portion 6a and the first engaging groove 7a, respectively, is connected to each guide groove of the separating portion 9. 9a is engaged with each protrusion 8a of the main body portion 8 from the − direction, and the upper kotsuta 10 is fixed through the hole, thereby both the aperture surface portions 6
a, 6b and both engaging grooves 7a, 7b, the constricted part 6 and the ring 3 have a truncated conical inner circumferential surface that expands forward.
It is configured so that it can be integrated with a ring-shaped holding recess 7 that holds it in a manner that it cannot move back and forth and cannot expand in the radial direction. The maximum diameter of the constricted portion B, that is, the inner diameter of the front end edge, is set to be 1° larger than the outer diameter of the joint portion 1a of the pipe joint body 1 in No. 110, and after the minimum diameter is The inner diameter of the end edge portion is set to be larger than the inner diameter of the ring 6, and furthermore, the intersecting corner portion 3a between the front end surface of the ring groove and the inner circumferential surface is larger than the inner circumference of the constricted portion 6. The surface is chamfered so that it runs smoothly from the rear edge (see Figure 3).
さらに、この押込体５つまり本体部分８は、各案内凹溝
８ｂを枠体１１の各突条１１ａに係合させることによっ
て、枠体１１に前後方向にのみ一移動自在に支持さねで
いる。Further, the pusher 5, that is, the main body portion 8, is supported by the frame 11 so as to be movable only in the front-rear direction by engaging each guide groove 8b with each protrusion 11a of the frame 11. .
また、枠体１１の前端部には、前記押込体５と間柱に、
コツタ１２を洞貫固定させることによ−〕てｒ７゛に上
下から衝合一体化される倒立門形状の本体部分１４と分
離部分１５とからなる保持体１６が取付けられている。Further, at the front end of the frame 11, the pusher body 5 and the studs are provided with
A holder 16 consisting of an inverted gate-shaped main body part 14 and a separation part 15 which are abutted and integrated from above and below is attached to r7' by fixing the kotsuta 12 through the canal.
枠体１１には本体部分１４のみ上下から抱持する環状の
係合凹部１３ａ”形成されていて、これによって保持体
１３シたがって枠体１１を管継手本体１に後方移動不能
に保持できるようｌこなされている。The frame body 11 is formed with an annular engagement recess 13a'' that holds only the main body portion 14 from above and below, so that the holding body 13 and therefore the frame body 11 can be held in the pipe joint body 1 without being able to move backward. l It is being done.
さらに、枠体１１の後端部には連結管体２を下方から跨
ぐＵ字形状のカム体１６が固着されており、このカム体
１６の前端部に形成せる上窄まり三角形状の一対のカム
溝１６ａ、１６ ａ （一方のみ図示）には、連結管体
２の両側位置で上窄まり三角形状の一対の抑圧板１７
、１７ （一方のみ図示）を上下摺動自在に係合させて
あり、枠体１１から下方へ乗設されたネジ杆１８には、
前記両押原板１７．１７の下端部間を連結する連結板１
９を上下動自在に貫通させたーＬナツト２０を螺着させ
である。Furthermore, a U-shaped cam body 16 that straddles the connecting tube body 2 from below is fixed to the rear end of the frame 11. The cam grooves 16a, 16a (only one shown) are provided with a pair of triangular suppression plates 17 that taper upward at both sides of the connecting tube body 2.
, 17 (only one of which is shown) is vertically slidably engaged with the threaded rod 18 mounted downward from the frame 11.
Connecting plate 1 connecting the lower ends of both pressing original plates 17 and 17
9 is vertically movable through it, and an L nut 20 is screwed onto it.
なお、各押圧板１７の前端縁部は、押込体５の本体部分
８の後端面部に形成せる各案内凹溝８ｃにに下指動自在
に係合しうるようになされている。The front end edge of each pressing plate 17 is adapted to engage with each guide groove 8c formed in the rear end surface of the main body portion 8 of the pusher 5 so as to be freely downwardly movable.
したがって、まず以上のように構成された押込工具を、
コツタ１２により保持体１３を係合凹部１３ａを介して
管継手本体１に固定すべく一体化１．２にセットしてお
く（第１図及び第４図晃このとき、リング３が上下の絞
り面ｇＢ６．．６ｂで形成された絞り部乙に連らなった
状態で押込体５に保持される。Therefore, first, use the pushing tool configured as above.
The holding body 13 is set to the integral position 1.2 in order to be fixed to the pipe joint body 1 via the engagement recess 13a by the locking member 12 (see Figs. 1 and 4). It is held by the pushing body 5 in a state where it is continuous with the constricted part B formed by the surfaces gB6..6b.
そして、この状態からナツト２０を上方へ螺送操作させ
ることにより、押込体５の絞り部６を画体１，２の嵌合
部分１．．２．へと押込ませる。Then, by screwing the nut 20 upward from this state, the diaphragm 6 of the pusher 5 is moved to the fitting portion 1 of the image bodies 1 and 2. ．． 2. push it into
すなわち、ナツト２０の螺送により各押圧板１７が上昇
せしめられて、各押圧板１７の前端部をして押込体５が
前進せしめられていき、したかつて押込体５の絞り部６
が、画体１，２の嵌合部分１．．２ａへその前板がりの
数頭円錐状内周面により該嵌合部分１ａ、２ａを順次絞
り変形させながら押込まれていく（第５図）。That is, each pressing plate 17 is raised by the screwing of the nut 20, and the pushing body 5 is moved forward using the front end of each pressing plate 17.
However, the fitting portion 1. of the picture bodies 1 and 2. ．． The fitting portions 1a and 2a are pushed in while sequentially being squeezed and deformed by the conical inner peripheral surface of the front plate of the umbilicus 2a (FIG. 5).
さらに、前記カット２０の螺送操作を行って押込体５を
前進させて、前記絞り部６でもって絞り変形された絞り
変形部分ｉ ａ′、 ２１へ引続いてリング６を押込ま
せる（第６図）。Furthermore, the threading operation of the cut 20 is performed to advance the pushing body 5, and the ring 6 is subsequently pushed into the drawn deformed portion i a', 21 which has been drawn and deformed by the drawn part 6 (sixth figure).
このとき、リング３の角部３ａが第６図に示す如く絞り
部６の後端縁部から円滑に連らなるように面取りされて
いるから、絞り部６つまりより正しくはその後端縁部に
より絞り変形された直後の絞り変形部分１ａ７ 、２
ａｌを、前記面取りされた角部３ａが円滑に引継いて若
干ではあるが絞り変形させながら、リング６が画体１゜
２の嵌合部分ｉａ、２ａへ良好に押込まれうるのである
。さらに、このようにリング６は、それ自体で前記嵌合
部分１ａ、２ａを絞り変形させることな（、該嵌合部分
１ａ、２ａに押込ませるから、この押込み時においては
、リング６にはこれを径方向へ拡張させる力が大きく作
用することがない。したがって、リング３の肉厚を必要
以上に厚くしておかなくとも、押込時における拡張力に
よってリング３が破断される虞れがない。このため、リ
ング３の肉厚を可及的に薄くし得て、画体１，２の連結
部形態を体裁良くすることができ、しかも配管上からも
好ましい。なお、前記実施例では、リング３の外周面を
押込体５の保持凹部７で拡張不能に保持させているから
、上記効果は更に顕著となる。At this time, since the corner 3a of the ring 3 is chamfered so as to smoothly extend from the rear end edge of the constriction part 6 as shown in FIG. Aperture deformed portions 1a7, 2 immediately after aperture deformation
The ring 6 can be well pushed into the fitting portions ia, 2a of the image body 1.degree. 2 while the chamfered corner portion 3a smoothly takes over and slightly deforms the ring 6a. Furthermore, in this way, the ring 6 does not squeeze and deform the fitting portions 1a, 2a by itself (since it is pushed into the fitting portions 1a, 2a, the ring 6 does not deform the fitting portions 1a, 2a by itself). Therefore, even if the wall thickness of the ring 3 is not made thicker than necessary, there is no risk of the ring 3 being broken by the expansion force during pushing. Therefore, the wall thickness of the ring 3 can be made as thin as possible, and the shape of the connection part between the picture bodies 1 and 2 can be improved, which is also preferable from the perspective of piping. Since the outer circumferential surface of the pusher 3 is held in a non-expandable manner by the holding recess 7 of the pusher 5, the above effect becomes even more remarkable.
そして、リング３が画体１，２の嵌合部分１ａ、２ａに
所望量押込まれ、画体１，２のリング３による連結が終
了すると、コツタ１０．１２を引き抜いて各分離部分９
．１５を各本体部分８゜１４から取外し、押込工具つま
り押込体５及び保持体１３をリング３及び画体１，２か
ら脱離さぜるのである（第７図）。Then, when the ring 3 is pushed into the fitting portions 1a and 2a of the picture bodies 1 and 2 by a desired amount and the connection of the picture bodies 1 and 2 by the ring 3 is completed, the cotters 10 and 12 are pulled out and each separated part 9
．． 15 from each body part 8.degree. 14, and the pushing tool, that is, the pushing body 5 and the holding body 13, are removed from the ring 3 and the picture bodies 1, 2 (FIG. 7).
このように、画体１，２の嵌合部分１ａ、２ａに該嵌合
部分１ａ、２ａを絞り変形させた状態で押込まれたリン
グ３の内周面形状が、従来におけるような抜は勝手とな
る截頭円錐形状ではなく、径一定の円柱形状つされてい
るから、画体１，２の連結部分ｉａ、２ａに圧力や振動
が作用しても、これらの影響を受けてリングろが不測に
移動される虞れは殆んどない。In this way, the shape of the inner circumferential surface of the ring 3, which is pushed into the fitting portions 1a and 2a of the picture bodies 1 and 2 with the fitting portions 1a and 2a squeezed and deformed, is such that it can be pulled out easily as in the conventional case. Because it is not a truncated conical shape but a cylindrical shape with a constant diameter, even if pressure or vibration is applied to the connecting parts ia and 2a of the picture bodies 1 and 2, the ring filter will not move due to these influences. There is little risk of accidental movement.
ところで、従来ではリング内周面形状が截頭円錐形状と
されていたため、画体の嵌合部分の最も絞り変形された
部分がわすかにリングの後端部である最小内径部が押込
まれている部分にすきないが、前記画体１，２の連結部
分においては、嵌合部分ｉａ、２ａの最も絞り変形され
た部分がリング３の押込まれている全ての部分となって
いるから、画体１，２の連結が極めて強力に行われる。By the way, in the past, the shape of the inner peripheral surface of the ring was a truncated cone shape, so the part of the fitting part of the image body that was most squeezed and deformed was slightly pushed in by the smallest inner diameter part, which was the rear end of the ring. However, in the connection part between the picture bodies 1 and 2, the most squeezed and deformed parts of the fitting parts ia and 2a are all the parts into which the ring 3 is pushed. The connection between bodies 1 and 2 is extremely strong.
したかつて、上記のようにして連結された画体１，２の
連結部分は、耐圧力及び耐振動性に富み、漏洩を招来さ
せることなく、管体の大きな引き抜は阻止力が確保され
ており、長期に亘って良好な連結状態を維持しうるもの
である。In the past, the connecting portion of the picture bodies 1 and 2 connected in the above manner had high pressure resistance and vibration resistance, did not cause leakage, and was able to prevent a large amount of the tube from being pulled out. Therefore, a good connection state can be maintained for a long period of time.
また、リング６の内径を一定としたがら、リング６を容
易間っ安価に製作でき、しがも前記実施例の如くリング
６の外径も一定として、リング３を肉厚一定の円筒形状
として３くなら１ｆ、より製作経済上有利となるばかり
でなく、リング３による画体１，２の嵌合部分１ａ、２
ａの締付は力を均一にできて、連結機能上も有利となる
。Furthermore, by keeping the inner diameter of the ring 6 constant, the ring 6 can be manufactured easily and at low cost.However, as in the above embodiment, the outer diameter of the ring 6 is also constant, and the ring 3 is formed into a cylindrical shape with a constant wall thickness. If the ring 3 is 1f, it is not only more economical to manufacture, but also the fitting parts 1a, 2 of the picture bodies 1, 2 by the ring 3.
Tightening a can make the force uniform, which is advantageous in terms of the connection function.
なお、本発明は前記実施例に限定されるものではなく、
例えば第８図に示す如く、管継手本体１を両端部を大径
の継手部１ａ、ｌａに構成した比較的短寸のものに成形
し、各継手部１ａに各々前記同一のリング３を介して各
連結管体２の端部２ａを連結させてもよく、このように
すれば２本の連結管体２，２を管継手本体１てもって確
実強固に連結することができる。Note that the present invention is not limited to the above embodiments,
For example, as shown in FIG. 8, a pipe joint main body 1 is formed into a relatively short piece with large diameter joint parts 1a, la at both ends, and the same ring 3 is inserted into each joint part 1a. The end portions 2a of the respective connecting pipe bodies 2 may be connected by using the pipe joint body 1. In this way, the two connecting pipe bodies 2, 2 can be reliably and firmly connected by the pipe joint body 1.
体との嵌合部分が内径一定のリングでもって絞り変形き
れた状癲で連結されているから、内周面形状が截頭円錐
状のリングでもって連結された従来の管継手に比して、
前記画体の連結部分に作用する圧力や振動の影響を受け
てリングか不測に移動されるような虞れがなく、前記画
体の連結が確実強固に行われるのである。The fitting part with the body is connected with a ring with a constant inner diameter in a condensed and deformed shape, compared to conventional pipe joints that are connected with a ring with a truncated conical inner circumferential surface shape. ,
There is no risk that the ring will be moved unexpectedly due to the influence of pressure or vibration acting on the connecting portion of the picture bodies, and the picture bodies are reliably and firmly connected.
したがって、前記画体の良好な連結状態が長期に亘って
維持され、連結部分からの漏洩といったような不都合な
事態が発生することかなく、配管をする上において極め
て有利である。Therefore, a good connection state of the picture bodies is maintained over a long period of time, and there is no occurrence of inconvenient situations such as leakage from the connection parts, which is extremely advantageous in terms of piping.
また、本発明の管継手の組立方法によれば、リングを管
継手本体と連結管体の嵌合部分に押込むための押込工具
の一部である押込体に、略数頭円錐状の内周面を有する
絞り部を設けて、この絞り部によって前記画体の嵌合部
分を絞り変形させながら、この絞り変形された部分に引
続いてリングを押込ませるようにするから、リングの内
径が一定であるにも拘わらす、どのリングを前記画体の
嵌合部分にこれを絞り変形させた状態で良好に押込ませ
得て、前記した管継手を簡単１つ良好に組立てることが
できる。Further, according to the method for assembling a pipe joint of the present invention, the pushing body, which is a part of the pushing tool for pushing the ring into the fitting portion of the pipe joint main body and the connecting pipe body, has an inner peripheral surface having a substantially conical shape. The inner diameter of the ring is constant because a constriction section having a diameter of In spite of this, it is possible to press any ring into the fitting portion of the body in a state where it is squeezed and deformed, and the pipe joint described above can be easily and satisfactorily assembled.
図は本発明の管継手の一実施例を示したもので、第１図
は互に嵌合された管継手本体と連結管体に押込体を含む
押込工具をセットした状態を示す縦断側面図、第２図は
押込体を分解して示す斜視図、第３図は第１図のｍ部分
を拡大して示す詳細図、第４図〜第７図は管継手の組を
工程における各々の状態を示す縦断側面図、第８図は管
継手の他の実施例を示す縦断側面図である。
１・・・管継手本体、１ａ、２ａ・・・嵌合部分、１ａ
′、２ａ′・・・絞り変形部分、２・・・連結管体、６
１．。
リング、５・・・押込体、６・・・絞り部。
特許 出 願 人 日本鋼管継手株式会社代理人 弁理
士 鈴 江 孝 −第１図
第３図
第４図
１５
４
第６図
第５図
第７図The figure shows one embodiment of the pipe joint of the present invention, and Fig. 1 is a longitudinal sectional side view showing a state in which a pushing tool including a pushing body is set in a pipe fitting main body and a connecting pipe body that are fitted together. , Fig. 2 is an exploded perspective view of the pushing body, Fig. 3 is a detailed enlarged view of section m in Fig. 1, and Figs. FIG. 8 is a vertical side view showing another embodiment of the pipe joint. 1... Pipe joint body, 1a, 2a... Fitting part, 1a
', 2a'... Aperture deformed part, 2... Connecting pipe body, 6
1. . Ring, 5... Pushing body, 6... Squeezing part. Patent applicant: Japan Steel Pipe Fittings Co., Ltd. Agent Patent attorney Takashi Suzue - Figure 1 Figure 3 Figure 4 Figure 15 4 Figure 6 Figure 5 Figure 7
Claims (1)
た連結管体とを、前記管継手本体の外周部に嵌合させた
内径一定のリングでもって前記画体の嵌合部分を絞り変
形させた状態で連結したことを特徴とする管継手。 ２、 管継手本体に連結管体の端部を嵌入させると共に
、該連結管体の外周部に嵌挿させた内径一定のリングを
、その内周形状を管継手本体方向へ拡がる略截頭円錐状
とせる絞り部を有する押込体に、該絞り部に連らならせ
て保持させた状態で、前記押込体を管継手本体方向へ移
動させて、前記画体の嵌合部分を前記絞り部で絞り変形
せしめながら、この絞り変形された部分に引続いて前記
リングを押込ませ、その後前記押込体を該リングから脱
離させるようにしたことを特徴とする管継手の組立方法
。[Claims] 1. A pipe joint body and a connecting pipe body whose end is fitted into the inner periphery of the main body with a ring having a constant inner diameter fitted into the outer periphery of the pipe joint body. A pipe joint characterized in that the fitting portions of the picture bodies are connected in a squeezed and deformed state. 2. Fit the end of the connecting pipe body into the pipe joint body, and insert a ring with a constant inner diameter fitted onto the outer periphery of the joint pipe body so that the inner circumference shape is approximately a truncated cone that expands toward the pipe joint body. A pushing body having a constricted part that can be shaped into a shape is held in line with the constricted part, and the pushing body is moved toward the pipe joint body so that the fitting part of the body is connected to the constricted part. A method for assembling a pipe joint, characterized in that the ring is subsequently pushed into the drawn and deformed portion while being squeezed and deformed, and then the pushing body is removed from the ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15795081A JPS5857585A (en) | 1981-10-01 | 1981-10-01 | Pipe joint and its assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15795081A JPS5857585A (en) | 1981-10-01 | 1981-10-01 | Pipe joint and its assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5857585A true JPS5857585A (en) | 1983-04-05 |
Family
ID=15661002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15795081A Pending JPS5857585A (en) | 1981-10-01 | 1981-10-01 | Pipe joint and its assembling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5857585A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60227932A (en) * | 1984-04-24 | 1985-11-13 | Nippon Kokan Keishiyu Kk | Connecting method of thin metallic pipe |
| JPS6184292U (en) * | 1984-11-07 | 1986-06-03 | ||
| JPS6212408A (en) * | 1985-07-09 | 1987-01-21 | Nhk Spring Co Ltd | Axle supporting device for automobile |
| JPS6343734A (en) * | 1986-08-08 | 1988-02-24 | Mie Horo Kk | Joining method for pipe stock |
| JPS63304861A (en) * | 1987-06-05 | 1988-12-13 | 大成建設株式会社 | Joint construction method for reticulated reinforcement |
| JPH03189493A (en) * | 1989-12-20 | 1991-08-19 | Nkk Corp | Tube joint and construction method thereof |
-
1981
- 1981-10-01 JP JP15795081A patent/JPS5857585A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60227932A (en) * | 1984-04-24 | 1985-11-13 | Nippon Kokan Keishiyu Kk | Connecting method of thin metallic pipe |
| JPS6184292U (en) * | 1984-11-07 | 1986-06-03 | ||
| JPH0240384Y2 (en) * | 1984-11-07 | 1990-10-29 | ||
| JPS6212408A (en) * | 1985-07-09 | 1987-01-21 | Nhk Spring Co Ltd | Axle supporting device for automobile |
| JPS6343734A (en) * | 1986-08-08 | 1988-02-24 | Mie Horo Kk | Joining method for pipe stock |
| JPS63304861A (en) * | 1987-06-05 | 1988-12-13 | 大成建設株式会社 | Joint construction method for reticulated reinforcement |
| JPH03189493A (en) * | 1989-12-20 | 1991-08-19 | Nkk Corp | Tube joint and construction method thereof |
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